Skip to page content
SAVRN
Search Plan a project

Open-weight model · Robotics

b1k-2026-3more-ft1

by Rena Tian Rena-Tian/b1k-2026-3more-ft1

b1k-2026-3more-ft1 is an open-weight model for robotics from Rena Tian, released under Apache License 2.0. Its published files total 12.6 GB.

Selected checkpoint for the BEHAVIOR-1K 2026 submission. (IliaLarchenko/behavior-1k-solution, ~3B params, task-ID embeddings, no language prompt). - Checkpoint is params-only (no optimizer state): it can be served or used as an init, not --resumed.

Parameters—
Context—
Weights12.6 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads—

Model Card

By Rena Tian, published under apache-2.0, revision 7f4152ce6f78.

Selected checkpoint for the BEHAVIOR-1K 2026 submission. (IliaLarchenko/behavior-1k-solution, ~3B params, task-ID embeddings, no language prompt). - Checkpoint is params-only (no optimizer state): it can be served or used as an init, not --resumed. - params/ — orbax/ocdbt parameters - assets/b1k20263moretasks/normstats.json — normalization stats - CHECKPOINTMETADATA Serve with scripts/serveb1k.py --task-id 56 policy:checkpoint --policy.config pibehaviorb1k20263more --policy.dir (use --task-id 78 for task 78). Scored the 2026 leaderboard way: public instances 0-9 (ids 301-310), one rollout each, default 1.5x timeouts, task score = sum / 10. - Use this checkpoint for tasks 56 and 78. For task…

Read Rena Tian's full model card

BEHAVIOR Challenge 2026 — joint tasks 56/78/99 (make_rose_centerpieces, make_cabinet_doors, sorting_books_on_shelf), fine-tune ft1, step 19999

Selected checkpoint for the BEHAVIOR-1K 2026 submission.

Model

  • Architecture: the 2025 BEHAVIOR Challenge winner's pi0.5-based policy (IliaLarchenko/behavior-1k-solution, ~3B params, task-ID embeddings, no language prompt).
  • Init: the winner's 50-task generalist checkpoint (IliaLarchenko/behavior_50t_checkpoint); 100 task slots.
  • Training config: pi_behavior_b1k_2026_3more (in our pipeline repo's behavior-1k-solution/src/b1k/training/config.py).
  • Data: 2026 challenge demos, 2026 demos for tasks 56, 78 and 99 combined, RGB cameras only.
  • Recipe: 20,000 steps (final step is 19999), 1x A100 80GB. Final training loss ~0.21.
  • Checkpoint is params-only (no optimizer state): it can be served or used as an init, not --resumed.

Layout

  • params/ — orbax/ocdbt parameters
  • assets/b1k_2026_3more_tasks/norm_stats.json — normalization stats
  • _CHECKPOINT_METADATA

Serve with scripts/serve_b1k.py --task-id 56 policy:checkpoint --policy.config pi_behavior_b1k_2026_3more --policy.dir <this dir> (use --task-id 78 for task 78).

Evaluation (local; q = fraction of goal predicates newly satisfied)

Scored the 2026 leaderboard way: public instances 0-9 (ids 301-310), one rollout each, default 1.5x timeouts, task score = sum / 10.

Task 56 (4 goal predicates)

Leaderboard score: q = 0.35 (sum 3.5 over 301-310; full completions: none)

instance 301 302 303 304 305 306 307 308 309 310
q 0.5 0 0 0.25 0.25 0.25 0.5 0.5 0.75 0.5

Task 78 (single attached goal, all-or-nothing)

Leaderboard score: q = 0 (sum 0 over 301-310; full completions: none)

instance 301 302 303 304 305 306 307 308 309 310
q 0 0 0 0 0 0 0 0 0 0
  • Use this checkpoint for tasks 56 and 78. For task 99 use the dedicated retrain Rena-Tian/b1k-2026-task99-ft1 (0.0364 vs 0.0182 here).
  • Step 8000 of this run scored 0 on its task 56 screen, so the final step was kept.

Identity and Version

Repository
Rena-Tian/b1k-2026-3more-ft1
Publisher
Rena Tian
Task
Robotics
Modality
Control
Library
Not stated by the source
Parameters
Not stated by the source
Languages
Not stated by the source
Revision
7f4152ce6f785440582697e516228de8c90e9812
First published
2026-10-09
Last updated
2026-10-09

Files and Weights

28 files, 12.6 GB in total.

Configuration1 file · 18.0 MB
Documentation1 file · 2.4 KB
Other25 files · 12.6 GB
Repository1 file · 2.8 KB
Every file
FileTypeSizeSHA-256
assets/b1k_2026_3more_tasks/norm_stats.jsonConfiguration18.0 MB ccd14a0210fc
README.mdDocumentation2.4 KB —
_CHECKPOINT_METADATAOther324 B —
params/_METADATAOther31.1 KB —
params/_shardingOther18.1 KB —
params/array_metadatas/process_0Other12.7 KB —
params/d/e168af3bade2f3ef89e980ff283175dfOther2.9 KB —
params/manifest.ocdbtOther118 B —
params/ocdbt.process_0/d/0348782ef5526ee75e52dc57ee2de818Other1.0 KB —
params/ocdbt.process_0/d/134dd274921af1604dd7dccd1a42fc12Other213 B —
params/ocdbt.process_0/d/2076f26dcf074e45c3fe321ab37584b5Other1.6 GB 6d0a16b5b31b
params/ocdbt.process_0/d/2a82694871c8dd7525c402108f57a88eOther1.4 KB —
params/ocdbt.process_0/d/438f97275b5ac05ca34c30e103f49fbdOther2.9 KB —
params/ocdbt.process_0/d/4cf4f7ec36d7cdbe99483a5afa009c2fOther3.1 GB ba72a46c6baf
params/ocdbt.process_0/d/56c8002621af41a403ee50b076d3179bOther701.9 MB dbfa351f82e9
params/ocdbt.process_0/d/599bcf7d61a391e7db09cd31483f3f72Other1.3 KB —
params/ocdbt.process_0/d/716a045e82811481abe3c22b6e82eeb9Other560.2 MB 2befbc68275e
params/ocdbt.process_0/d/735ab358a49588ce71ff78820b2622deOther49.5 MB ffa8b533d4ce
params/ocdbt.process_0/d/7c23ee7d3b5398a6f90bf19b5984ee36Other226.3 MB 8855cb7ac0b9
params/ocdbt.process_0/d/9cec95c8e9dc3717b1b3f440b98ccd35Other1.1 GB e5a7cc07f875
params/ocdbt.process_0/d/9fc8342789aa3c50941d3c88d0cdd9aeOther2.0 MB 6fccd831ad70
params/ocdbt.process_0/d/a378887bf8bade61d0be9f501aa31fd8Other238.5 KB 97f91cc2b5f6
params/ocdbt.process_0/d/c1e2ac5b7361ed3fb119177355de7198Other482.9 MB 461afd39c225
params/ocdbt.process_0/d/d5c6245a8b66a9e16d3a339137afc408Other2.2 GB 68f028d4d21c
params/ocdbt.process_0/d/d9ae75d37946127645872e15b5d984caOther378.2 MB 32a73d2f833a
params/ocdbt.process_0/d/df038cb4b1f29addff62f7b23e0068a9Other2.2 GB 0b10a1859814
params/ocdbt.process_0/manifest.ocdbtOther782 B —
.gitattributesRepository2.8 KB —

License and Download

License
apache-2.0
Access
Open weights, no gate
Download from Rena Tian

Released by Rena Tian through its official repository on Hugging Face. Read the license.

Questions About b1k-2026-3more-ft1

Can I use b1k-2026-3more-ft1 commercially?

Yes. b1k-2026-3more-ft1 is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

Similar Models

LIBERO 4in1(liberospatial / liberoobject / liberogoal / libero10)共 53.19 GB 的 Wan2.2-VAE 编码 latent 缓存: 训练 LIBERO policy(action head / VLA)时直接读取 latent 缓存,避免重复 VAE 编码。 - 窗口模式: windowed(--windowed) - 输出:.pt 文件,每 episode 一个 - dataset(推荐): https://huggingface.co/datasets/MangoGoes/libero4in1wan2.2vaelatentdataset - model(本仓库): https://huggingface.co/MangoGoes/libero4in1wan2.2vaelatentcosmosstyle

Open weights other cosmos

Model · Robotics

wam_ctxpool_bmethod

Hyeonmo Kang

Wan2.2-TI2V-5B video DiT + 48-joint action head, trainingmode=joint. The base is suhyeok's finalized B-method recipe: a teacher-forced (sigma=0.25) self-EMA teacher plus an iBOT prototype loss at L18 L18, gamma=0.01, two-view. On top of it the 3 PAST cond latent frames are pooled into one motion frame before a chosen block. These are NOT the surrogate ctxpool runs. The surrogate line (older base, pd8 x GA1) lives in hmkang/wamctxpoolxattn and hmkang/wamctxpoolavg. Do not compare across the two sets. Geometry: 4-latin (numframesin=25, numframesout=41, fdf 2) = 4 cond + 2 future latent slots, 96 tokens per latent frame, 576 tokens per row. Effective batch 16 clips x GA 2 x 2 views = 64 rows…

Open weights apache-2.0 wan2.2

weighted/imatrix quants of https://huggingface.co/DeepCybo/PhysBrain1.5-8B For a convenient overview and download list, visit our model page for this model. static quants are available at https://huggingface.co/mradermacher/PhysBrain1.5-8B-GGUF This is a vision model - mmproj files (if any) will be in the static repository. If you are unsure how to use GGUF files, refer to one of TheBloke's READMEs for more details, including on how to concatenate multi-part files. (sorted by size, not necessarily quality. IQ-quants are often preferable over similar sized non-IQ quants) Here is a handy graph by ikawrakow comparing some lower-quality quant And here are Artefact2's thoughts on the matter…

Open weights transformers

static quants of https://huggingface.co/MirilAI/Miril-DroneVLM-2B-2 For a convenient overview and download list, visit our model page for this model. weighted/imatrix quants seem not to be available (by me) at this time. If they do not show up a week or so after the static ones, I have probably not planned for them. Feel free to request them by opening a Community Discussion. If you are unsure how to use GGUF files, refer to one of TheBloke's READMEs for more details, including on how to concatenate multi-part files. (sorted by size, not necessarily quality. IQ-quants are often preferable over similar sized non-IQ quants) Here is a handy graph by ikawrakow comparing some lower-quality quant…

Open weights apache-2.0 transformers

Vivy-R-Robotics-3B (R-ROBOTICS-3B) is the embodied robotics and desktop/hardware actuation model of the Vivy.v6 R-Series ecosystem. It combines a complete 3.09-billion-parameter (3.09B) 36-layer language-to-mission compiler with a sub-millisecond ( 37.81% -> 75.62% -> 94.53% -> 95.82% -> 96.72%). - R-ROBOTICS-3B drives LAW3ROBOTICSHIERARCHICALASTCLOSURE and LAW7CROSSPAGE50PTABLECONTINUATION, enforcing deterministic structural hierarchy and kinematic state continuity across 50+ page documents.

Open weights apache-2.0 gguf

Model · Robotics

microduck-bubu-sprint

Dadudu

Own lineage: PPO from scratch (nb1, commit 46c48b1) continued as nb2 and nb4 (commit fac88cc), checkpoint 850 (1.328 s); evolution strategies on the weights against the Arena sprint scorer (0.952 s); then the network frozen and wrapped in a step counter carried in the headroll action that adds joint-target and forward-command offsets from about 0.5 m to the line, found by CMA-ES on the event's official seeds: 0.940 s. No other entry's weights used. Simulation only. A perpetual policy for the microduck (61-D observation, 14 actions, 50 Hz). Runs until told otherwise — a gait, loaded into a policy slot. The observation normalizer is baked into policy.onnx; feed raw observations. manifest.json…

Open weights microduck